• Year
  • 1929 ??
  • Category
  • Radio module post 1925 (not a part, not a key)
  • Radiomuseum.org ID
  • 58187

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Wave bands
  • - without
  • Loudspeaker
  • - - No sound reproduction output.
  • from Radiomuseum.org
  • Model: 2M - Sonora Phonograph Co., Inc.;
  • Notes
  • Phonograph motor; different supply voltages : 110 or 220 V AC or 32 V DC.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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